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D particle
D particle
- Either of two subatomic particles in the meson family, one neutral and one positively charged, having masses 3,649 and 3,658 times that of the electron and average lifetimes of 4.2 × 10 -13 and 1.1 × 10 -12 seconds, respectively.
- See Table at subatomic particle
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Word History and Origins
Origin of D particle1
First recorded in 1975–80
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